Cant log in from external monitor on laptop with broken screen.

Thread Tools Search this Thread
Top Forums UNIX for Beginners Questions & Answers Cant log in from external monitor on laptop with broken screen.
# 1  
Old 01-26-2019
Cant log in from external monitor on laptop with broken screen.

Hello. I am installing Kali Linux on a laptop with no monitor. The installation goes fine through the external monitor and I can see the GRUB menu on boot, but once it comes time to log in it acts like my non existant laptop screen is my main monitor to type my login info on while my external is just grey background. Moving the mouse cursor it will appear from the left hand side of the screen and I can enter the ctrl alt f3 terminal and log into root. Search engine results seemed 'xrandr' in the terminal could help me select my external monitor as the main one through terminal or boot commands. But when I type it in it says "Cannot show display" I checked the xrandr --help and tried other commands to the same effect. Wont even list displays with xrandr -q. Also built in laptop FN display commands only make the screen flash for a millisecond. Also checked BIOS for any video settings that I could change, there is nothing. I also tried logging in blind by typing passphrase, return key, also tried return, passphrase, return, no effect. I know if I can log in blind I can right click the background and select the graphics options from the shell to mirror the displays. If anyone can help me with a solution or you need any additional information please respond I would greatly appreciate it.
# 2  
Old 01-26-2019
Let me understand better...

You are connecting your laptop to your external monitor using what port exactly?

When you turn off the laptop and reboot it attached to an external monitor what do you see. exactly?
# 3  
Old 01-27-2019
I am using VGA port from a laptop. When the machine is turned on, the external monitor displays the GRUB boot menu listing my operating systems to boot (kali + kali advanced + windows 7). I select kali, my monitor shows some pages of code of the OS starting, screen goes black for a few seconds, then a grey background appears with nothing else. If I leave the computer for a couple minutes and let the monitor sleep, the blue kali background will be on my screen upon awaking, which I can move out of the way with the mouse.
# 4  
Old 01-27-2019
HI, debpleb
Try to start switching to a virtual console and see the logs.

--- Post updated at 19:50 ---

In any case, I will give the procedure
press Alt+Ctrl+F1
Log in and
sudo journalctl -p err
First of all, check the ability to switch to the console
This User Gave Thanks to nezabudka For This Post:
# 5  
Old 01-27-2019
The command brought up something along the lines of
-- log begins (boot time?) log ends (current time) --
 -- no entries --

# 6  
Old 01-28-2019
and so
journalctl -b -1 -p err

--- Post updated at 12:33 ---

In order not to read too much in your case, it probably will do:
journalctl -b -1 -p emerg or journalctl -b -1 -p 0 which is equivalent to
Error level code from 0 to 7
This User Gave Thanks to nezabudka For This Post:
# 7  
Old 01-28-2019
This sounds like your laptop is treating the external monitor as a secondary display and the (non-existing?) internal display as first. Perhaps the laptop has an internal graphics adapter and it treats the internal display as first, the external as second.

Usually laptops have some "function key" to switch that behavior. If you could tell us the exact making of your laptop somebody might even know how to do it.

I hope this helps.

These 2 Users Gave Thanks to bakunin For This Post:
Login or Register to Ask a Question

Previous Thread | Next Thread

7 More Discussions You Might Find Interesting

1. UNIX and Linux Applications

Ability to use vSphere client to monitor guest VMs on my laptop

Hi guys. I'm a newbie to VMs. What I want to achieve is that I create VMs on my laptop that I can monitor and access using vSphere client. I am using an Acer laptop with intel processor. Which hypervisor will i need ? How do I need to install it ? Is these any free solution ? ... (2 Replies)
Discussion started by: Junaid Subhani
2 Replies

2. Red Hat

Screen Resolution on External Monitor from RHEL 6.3

Hey everyone, I have a KVM or External monitor (19" Dell) that I am trying to hook up to a laptop running RHEL 6.3 (via VGA which is the only option). When I connect it, and go to System->Preferences->Display, the max resolution option it provides me for these external devices is 1280x1024. ... (2 Replies)
Discussion started by: rchaud10
2 Replies

3. Shell Programming and Scripting

Use “tail -f” to monitor and report, but the top line should be always fixed on the screen.

Title: Use “tail -f” to monitor and report, but the top line should be always fixed on the screen. Hi, dear Unix experts, I am trying to find a Unix command (or scripting) on how to continuously display a text file of its last several lines of contents. But during this displaying, I want some... (2 Replies)
Discussion started by: df3c
2 Replies

4. Hardware

get touch screen driver for Dell ST222OT Monitor

Hi We're looking for linux touch screen module (driver) for Dell ST222OT Monitor. BTW Has someone already tried to use this monitor under linux and the touch screen works? (0 Replies)
Discussion started by: ccc
0 Replies

5. Shell Programming and Scripting

Monitor Port, if active, pipe command to screen

I am a linux newbie and I am learning. I need a script that will monitor a port and if active -- only active, not listening or waiting -- then pipe some commands to the screen as if they were typed on the keyboard. Can a bash or perl script do this and if so, could someone help me out? Thanks. (0 Replies)
Discussion started by: bulgin
0 Replies

6. Ubuntu

Using Xorg t extend laptop screen to external monitor

Hey, I was trying to configure my laptop's xorg.conf file so I could use a external monitor. But things got messed up and now I can't get the original back (meaning a high resolution desktop on the laptop). What went wrong? How is it possible that the server always gets stuck at the line: ... (1 Reply)
Discussion started by: ElJavi
1 Replies

7. What is on Your Mind?

Can you use a gps touch screen for a monitor?

I have been looking for a monitor wich i can hold in my hands comfortably and just sit back and relax with it doing my computer work on it via touch screen. Is it possible since the gps has usb to control my pc wich it? and view my desktop? If not does anyone know of a monitor that would work. Im... (3 Replies)
Discussion started by: FaoX666
3 Replies
Login or Register to Ask a Question

Featured Tech Videos